# Cleaning Filaments
**URL:** https://forum.sovol3d.com/t/cleaning-filaments/6330
**Category:** Sovol SV06 Plus
**Created:** [December 22, 2024, 4:53pm UTC](https://forum.sovol3d.com/t/cleaning-filaments/6330 "2024-12-22T16:53:57Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Diego](https://forum.sovol3d.com/u/Diego)
#### Post date: [December 22, 2024, 4:53pm UTC](https://forum.sovol3d.com/t/cleaning-filaments/6330/1 "2024-12-22T16:53:57Z")
About three hours into a 9 hour print I noticed poor extrusion. After removing the nozzle, I discovered it was partially clogged.
Now I’m wondering about cleaning filaments which I have found advertised. Does anyone have experience with these, and are they worth using?
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### Author:  [@mich0111](https://forum.sovol3d.com/u/mich0111)
#### Post date: [December 22, 2024, 5:10pm UTC](https://forum.sovol3d.com/t/cleaning-filaments/6330/2 "2024-12-22T17:10:10Z")
Hi,
After using PETG, it is best to clean the nozzle.
I use a special cleaning filament for this.
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### Author:  [@Lion](https://forum.sovol3d.com/u/Lion)
#### Post date: [December 22, 2024, 5:20pm UTC](https://forum.sovol3d.com/t/cleaning-filaments/6330/3 "2024-12-22T17:20:35Z")
I say yes also.
Mostly when you downgrade a filament…ex ASA to PLA, PETG to PLA.
So anything you print at a high temp & then go to a lower temp.
If you don’t want to use cleaning filament, then purge at least 300mm.
With cleaning filament you purge until the filament comes out clear.
If you already have a clog, you can use it for cold pulls.
I usually set the hotend to 10\* hotter then the filament I used before.
ex…if I was using PETG at 235\*, I would use the cleaning filament at 245\*-250\*.
Cleaning filament is kinda of expensive, I use a filament brand called “ZIRO” and it comes with a bag of cleaning filament (so I have a lot of it).
So for the prince of just cleaning filament, you can get a roll of ZIRO.